08981
Sodium sulfite
analytical standard
Synonym(s):
E221
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About This Item
Linear Formula:
Na2SO3
CAS Number:
Molecular Weight:
126.04
EC Number:
MDL number:
UNSPSC Code:
85151701
PubChem Substance ID:
NACRES:
NA.24
Recommended Products
grade
analytical standard
Quality Level
Assay
≥98% (RT)
shelf life
limited shelf life, expiry date on the label
solubility
H2O: 1 g/10 mL, clear, colorless
application(s)
cleaning products
cosmetics
food and beverages
personal care
format
neat
SMILES string
[Na+].[Na+].[O-]S([O-])=O
InChI
1S/2Na.H2O3S/c;;1-4(2)3/h;;(H2,1,2,3)/q2*+1;/p-2
InChI key
GEHJYWRUCIMESM-UHFFFAOYSA-L
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General description
This substance is listed on the positive list of the EU regulation 10/2011 for plastics intended to come into contact with food.
Find all available reference materials for compounds listed in 10/2011 here
Find all available reference materials for compounds listed in 10/2011 here
Application
- Oxygen scavenging and contaminant removal: Sodium sulfite′s efficacy in removing organic contaminants through oxygen scavenging in various chemical systems was documented, illustrating its critical role in environmental cleanup and wastewater treatment technologies (Zhou et al., 2023).
- Disinfection by-product management: Sodium sulfite is reviewed for its impact and mechanisms as a residual chlorine quencher, highlighting its potential to reduce harmful disinfection by-products in water treatment processes, which is vital for ensuring safe pharmaceutical and biotechnical operations (Li et al., 2023).
Storage Class Code
13 - Non Combustible Solids
WGK
WGK 1
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
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